Update to 5.1-rc7
    
    - add patches.suse/rdma-fix-argument-of-ZERO_PAGE-in-rdma_umap_fault.patch
      (tentative s390x build fix)
    - New config options:
      - ARM:
        - KEYBOARD_SNVS_PWRKEY=m
      - armv7hl:
        - FRAME_POINTER=y
        - UNWINDER_FRAME_POINTER=y